Valve for explosive-engines.



No. 857.463. PATENTED JUNE-18, .1907.

G. W. IRWXN VALVE FOE EXPLOSIVE- ENGINES.

APPLIUATIUN FILED SEPT. 12.1904.

2 SHEETS-SHEET 1.

mnntoz No. 857,463. PATBNTED JUNE 18:1 907.

G. W. IRWIN. VALVE FOR EXPLOSIVE ENGINES.

APPLICATION FILED 8EYT.12.1904.

2 SHEETS-S HEBT 2.

amut [114m 7 EM? I I w GUY W. IRWIN, OF BRADFORD, PENNSYLVANIA.

VALVE FOR EXPLOSlV E-ENGlNES.

Specification of Letters Patent.

Patented .Tune 18, 1907.

Application filed September 12, 1904. Serial No. 224,160.

To all whmn it may concern.-

Be it known that I, GUY W. IRwrN, a citizen of the United States, residing at ,Bradford, in the county. of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Valves, of which the following is a specification, reference being had therein to the accompanying drawing.

' My invention relates to improvements in Valves for explosive engines, and pertaiiisparticularly to that class used in connection with internal combustion engines or motors. The object of my invention is to provide a valve which will not become distorted out of working form, when subjected to the intense heat coincident with the working of engines or motors of this character, and at the same time providing a valve which will not destroy the working surface of itself orthe chamber in which it is carried when ex ended by the heat to which it is necessari y sub jected. I

Another object of my invention is to provide a valve of this character, which is provided with a single opening which is used as.

an inletand exhaust opening, thus expdsing as little of the lubricated surface of the chamber to the fits. as possible, except that which covers the one port, and that only during the explosion of the engine.

the accompanying drawings, Figure 1,

is a longitudinal vertical sectional view of the valve chamber showing the valve mounted therein. Fig. 2, is a transverse vertical sectional view of the same showing the water jacket surrounding the valve. Fig. 3, isan enlarged plan view of the valve showing the same completely severed from end to end.

Fig. 4c, is an end view of my improved valve showing the connect on of the valve operating arm therewith. Fig 5, 1s a s de view of the valve casing showing the inlet and ex haust ports. Fig. 6, is an end view of a niodi- I fication showing the valve completely severed in two places. Fig. 7, is an end view of Fig. 6, looking in the opposite direction. Fig.

8, is a plan view of a modification showing the inlet opening extending transversely instead of longitudinally.

Referring now-to the drawings, A represents a valve chamber or casing which as shown, is of a cylindrical form, and provided with the open end a which is provided with an outwardly-extending flange A by means of which the same may be bolted to the en gine cylinder, and is in communication therewith through the open end. The said chamber"casing A is preferably provided with a Water space a, therein, thus allowing of'a circulation of water therethrough for the purpose of cooling the chamber, and also reventing the valve from becoming too ot,

sucked during the suction action of the piston, and is provided with an exhaust 0pen ingB through which the gases exhaust during the exhaust movement of the piston. The said chamber A as before described, is of acylindrical form, and provided with ,the central cylindrical opening in which is mounted a hollow cylindrical valve 0, which is-provided with an eccentric opening or bore therethrough, and the end ofsaid valve adjacent the opening in the casingis open, thus the central eccentric opening or bore in the valve is in direct communication with the engine cylinder. The casing A is provided with an opening I) through which a lubricant is fed, to the working part of the valve, the

said opening being so positioned that the combined exhaust and inlet opciiing of the valve does not at any time register therewith,

thus the oil or oiled surface is not exposed to the iii-e of the cylinder.

The said valve intermediate its ends and in-the thin wall formed by the eccentric opcning or bore, is provided with an elongated opening D which is of a size to correspond with that of the inlet, and exhaust openings B and B of thechamber, thus the working surface of the casing will not be exposed to the fire from the cylinder, when the said opening is either exhausting or taking a charge. The said valve oscillates (or it lnay be so constructed that it may reciprocate) and is connected to' the working part of the engine, and so timed that the opening in the valve willregister with either the inlet or exhaust opening at their proper time. The only part of the working surface of the chamber that is exposed to the fire of the cylinder, is that part which closes the opening in the valve during the explosion of the engine, and I preferably show that part between the inlet and exhaust openings.

The said valve before described, is provided with the openings D which serve the two fold purpose of an inlet and an exhaust opening, and is .of an elongated form, and

extending from the ends of said opening to the ends of the cylindrical valve is a slit or cutE whicl fas clearly shown, is out at an angle-\v itl.1the radius. The valve being out 5 in this riianner, and the sides of the out being out of contact, allows of the expansion of the valve caused by the intense heat, and thus the valve and the working portion oi the chan'iber will not heeon'ie injured. Should I0 expansion of the valve be such that would cause the shades of the out to meet, the clasticity oi'the metal all owe one side to'hc forced from the wall of the chamber, and thus causes the valveto leak and call attention to the same. This cut being cut at an angle to the radius, causes the portion to leave the side oi the wall of the ohan'iber, which would not he theease if they are out arallel therewith, as they would jani the va ve Wltl'llll the chamber. v

The end-oi the valve opposite the open end rovided with ,a valve operating arm F whic is connected to the engine in any desired manner, and adapted to oscillate the valve at the timespecihed heretofore.

In the modification shown in. Figs. 6, 7 and 8, the valveis made the same shape as heretofo're described, only instcad oi having an eccentric o'ening or bore in the same, it is 0' providedwith an oval here which forms two oppositely arranged thin elastic walls (l and Gr,- and dneof said walls is provided'with the opening I), the saine'as heretofore described,

andthe cut exte'nds therefrom to the ends and is cutlat an angle to the radius. The

opposite thin elastic wall G" is provided. with a cut D extending the entire length ofthe valve, and is also out at an angle to the radius. This-formsa valve practically in two 40 parts, and said parts are connected at one end the valve operatingarin which is conreacted to the thick walls tl'iereol, thus-leav- :ing the elastic thin walls free to expand and Erdviding twice as much expanding s 1.06

'efore the valve will leave the wall 0 chamber, and which would not occur under 'the ordinary usage of gas engines.

Having thus described my invention, what l I claim and desire to secure by Letters Pats 5o.ent,1s:--

1. The combination with a gas gine cylinder, of a round valve in communication thcrewith, and havirigan o val opening therein," thus forming two thin walls, and cuts extending through the entire length of said thin walls, l l V 2. The combination with a gas gine cylinder, nioation with the cylinder, and a hollow 6t valve within said chamber and having cute on opposite sides at W l thereof, and extending :WfldlS of the valve. h 3. The combination with a gas or oil en- 5 cylinder, of a valve chamber in coiionuor oil enentirely through the the and oil one of a valve ehainher in (SOH'llll'Lh' an angle to the :rarhns nication therewith, a valve withi said val ve chamber and having cuts on opposite sides at an angle to the radius thereof, and oonipletcly severing the val vc into two sections, and a transverse roeml'ier connecting the said sections at one end"intcro'iodiatc the cuts.

ll. The combination with a gas or oil oil-- gine cylinder, oi valve in conmiunivation therewith and having an oval opoi'iiru; theroin forming two o'p pi'isitely arranged thin walls, and said thin ,walls liavingouts cone plctely severing the valve andsaid (flUlLS UJb tending at an. angle to the radios tlu-reol'.

The couihination with a gas or oil (ll-- gine cylindenoi round valve in e :oiii1no ui'- cation. therewith. and having an. oval opening forming two thin walls, said thin walls lliLV' ing cuts completely severing the val vo into. two sections, and said cuts extending at an angle to the radius thereof and a transverse member within one end oi the valve and cured more thick walls of the two sections'ol the valve and holding them in their relative po'sitions. v 6. The combination with a or oil on girie cylinder, ol a round valve in comment cation therewith and having an oval o poi-ling thcri'ithrough lorrning two thin walls, said thin walls having passage-ways and cuts or tendingirom said passage ways to the end oi the valve and completelysevering the val ve into two soct' ms, said outs extending at an angle to the radius thcrcol, and a transverse member within one end ol the valve and. 'se cared to the thick walls ol? thetwo scotitms of the valve, and holding them in their relative positions. y

7 'lhe combination with a gas or oil. enof a round val vc i i conunonicath. and having ah oval opening. jli "forming two thin walls, thin walls having, passageways and cuts on tending "from said passage-way to the end of the valve at an angle to the radius thereof and completely severing the valves into two sections, and. a transverse ine i'i'ihcr within. one end ol the valve and see red to the thick walls of the two sections o the valve, and holding them in. their relative ziositions, and a valve stem. extending; laterally lrour the said transverse lneinliier. I

8. The coinhination,with. a gas or oil oil-- gine cylinder, of acylindrical valve chamber in comnmnicatiou tl'icrewith at one end, a round valve filling said chainher and having an oval opening therethrotigh forming two thin walls, said thin walls having oppositely arranged passageways, and cuts extending from the opposite sides of each passagevay to the end of the valve at an angle radius ol the valve, and complet the valve'into two .elonga 1| l v sections, a trans verse Plate Wl' the valve and flush therewith alia. tcu e p the thich walls" of the senii.cireular sections and'holding them in their relative positions, a valve-stem secured to said plate and extending through the valve chamber, and operating means carried by the end of said stem.

9. The combination With a gas or oil engine cylinder, of a valve chamber in communication therewith, a valve within the chamber and having expansibly controlled means constructed and arranged to cause the hot gases to leak from around the valve to indicate that the valve is overheated.

10. The combination with a gas or oil engine, cylinder, of a valve chamber in co1nmunication therewith, a hollow valve within the chamber and having ex ansibly controlled means constructed an arranged to cause the hot gases to leak from around the valve to indicate that the same is overheated.

11. The combination with a gas or oil en- In testimony whereof I aflix my signaturein presence Of t-VVO \VilJDGSSBS.

GUY W. IRWIN.

Witnesses:

I'IEKMAN H. NORTH, ABNER T. IRWIN. 

